Home / 25,319.85-34,941.20-13,990.11

Finding the Fourth Proportional to 25,319.85, 34,941.20 and 13,990.11

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Solution

The fourth proportional to 25,319.85, 34,941.20 and 13,990.11 is: 19,306.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,319.85 : 34,941.20 = 13,990.11 : x
  2. Step 2: Convert to fraction form
    25,319.85/34,941.20 = 13,990.11/x
  3. Step 3: Cross multiply
    25,319.85x = 34,941.20 × 13,990.11
  4. Step 4: Simplify right side
    25,319.85x = 488,831,161.58
  5. Step 5: Solve for x
    x = 488,831,161.58/25,319.85
  6. Step 6: Final answer
    x = 19,306.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.